Worried about rust on your brand new 4Runner? You’re right to be! For those planning to keep their Toyota 4Runner for the long haul, investing in rust protection is a smart move. Applying a quality undercoating product, especially to a new vehicle, can significantly extend its lifespan and maintain its value.
One highly recommended product is Woolwax, but there are other effective options available as well. The key is to thoroughly apply your chosen rust preventative to critical areas. Focus on the frame – both the exterior and interior, paying special attention to crossmembers, particularly the front ones that are most exposed to road salt and debris. Don’t forget the rear axle, body mounts, and front lower control arms (LCAs). Essentially, coat everything underneath your new 4Runner except for the CV boots and brakes.
Undercoated frame of a new 4Runner with Woolwax for rust protection.
For application, you can use spray cans for hard-to-reach spots and the inside of the frame. Alternatively, for a less messy and more controlled application on external surfaces, consider painting the undercoating on with a brush. Some enthusiasts even apply it to the transfer case to keep it looking pristine.
While the body of 4Runners is generally resistant to rust, it’s still wise to spray the underbody sheet metal and all brake line fittings for comprehensive protection. Woolwax stands out because of its user-friendly, non-noxious nature compared to some other undercoating products.
If you frequently drive in dusty or muddy conditions, the Woolwax will eventually form a protective, dry crust that matches the color of the terrain you’ve been driving through. This crust acts as an additional barrier against the elements. The beauty of Woolwax is that even after this buildup, you can easily wipe it away with a dry paper towel to reveal the original black paint underneath, maintaining the clean look of your new 4Runner.
Investing time in undercoating your new 4Runner is a proactive step that pays off in the long run. It helps preserve the structural integrity and appearance of your vehicle, ensuring it stays in top condition for years to come.
